Company lists · Data refreshed November 2026

Top 25 Customer data companies worldwide

RevenueBase identified 4,039 company matches for customer data companies worldwide as of November 2026 and tracks 159,379 professional contacts across them, including 53,981 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for customer data companies worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 5, 2026. Country and city lists for customer data companies follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Nov 5, 2026 How this list was built
4,039Companies
159,379Contacts tracked
53,981Verified emails
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The 25 largest customer data companies worldwide

Ranked by team size
Top 25 of 4,039 company matches for customer data companies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 5, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchLondon, United KingdomHQ recorded Nov 5, 202610001+16,459 contacts →

Exact match

“Kantar is the world’s leading marketing data and analytics business.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
2Exact matchIrving, United StatesHQ recorded Nov 5, 20265,001-10,00010,260 contacts →

Exact match

“Epsilon is a global leader in data and identity with deep expertise in digital media, clean rooms, customer data platforms, loyalty and marketing services.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
3Exact matchChelmsford, MA, United StatesHQ recorded Nov 5, 20261,001-5,0004,400 contacts →

Exact match

“We are The Customer Company®, a global leader in Customer Experience (CX), Omnichannel Marketing, Data Services, Customer Care, Fulfillment, and Logistics.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4Exact matchVancouver, MA, United StatesHQ recorded Nov 5, 20261,001-5,0004,262 contacts →

Exact match

“ZoomInfo (NASDAQ: GTM) is the go-to-market platform that helps businesses find, acquire and grow their customers.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
5Exact matchConway, NY, United StatesHQ recorded Nov 5, 20261,001-5,0003,442 contacts →

Exact match

“Acxiom puts data to work, solving complex challenges for the world’s leading brands and agencies.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6Exact matchNew York, United StatesHQ recorded Nov 5, 20261,001-5,0003,122 contacts →

Exact match

“At Zeta Global (NYSE: ZETA), we help enterprise brands and agencies Achieve the Impossible™ with superintelligent marketing.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7Exact matchBoston, MA, United StatesHQ recorded Nov 5, 20261,001-5,0002,980 contacts →

Exact match

“Klaviyo (NYSE: KVYO) is the autonomous B2C CRM.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8Exact matchMilan, ItalyHQ recorded Nov 5, 20261,001-5,0002,732 contacts →

Exact match

“We are JAKALA.The leading European player in AI-powered, data-driven performance.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9Exact matchNew York, United StatesHQ recorded Nov 5, 20261,001-5,0002,328 contacts →

Exact match

“Braze is the leading customer engagement platform that empowers brands to Be Absolutely Engaging.™ Braze allows any marketer to collect and take action on any amount of data from…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10Exact matchLondon, United KingdomHQ recorded Nov 5, 20261,001-5,0001,903 contacts →

Exact match

“From our headquarters in London, CACI empowers organisations to make bold, strategic decisions through the intelligent use of data and technology.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11Exact matchChicago, AR, United StatesHQ recorded Nov 5, 20265,001-10,0001,752 contacts →

Exact match

“IRI is a leading provider of big data, predictive analytics and forward-looking insights that help CPG, OTC healthcare, retailers and media companies to grow their businesses.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12Exact matchSan Francisco, United StatesHQ recorded Nov 5, 20261,001-5,0001,583 contacts →

Exact match

“LiveRamp is the trusted data collaboration network for AI-powered marketing.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13Exact matchChennai, IndiaHQ recorded Nov 5, 2026501-1,0001,502 contacts →

Exact match

“Mobius transforms the way data works for you.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14Exact matchNY, United StatesHQ recorded Nov 5, 20261,001-5,0001,378 contacts →

Exact match

“We power businesses with the best digital data.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15Exact matchNew York, NY, United StatesHQ recorded Nov 5, 20261,001-5,0001,278 contacts →

Exact match

“Hearts & Science, an Omnicom Media Group agency, transforms data signals into meaningful connections between brands and consumers that drive exponential growth.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16Exact matchHighland Park, TX, United StatesHQ recorded Nov 5, 202610001+1,265 contacts →

Exact match

“Dialog Direct helps brands manage and personalize their multichannel, multi-touch customer journeys using data-driven marketing and customer engagement solutions.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17Exact matchNew York, NY, United StatesHQ recorded Nov 5, 20265,001-10,0001,173 contacts →

Exact match

“Over a decade ago, Omnicom created Annalect to reimagine the future of marketing, at the crossroads of data, tech, analytics, and AI.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18Exact matchDallas, TX, United StatesHQ recorded Nov 5, 20261,001-5,0001,143 contacts →

Exact match

“Data Axle helps clients create a foundation of clean data, find new leads, develop winning strategies, design beautiful campaigns, and can handle all day-to-day execution needs”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19Exact matchUnited KingdomHQ recorded Nov 5, 202610001+1,140 contacts →

Exact match

“LexisNexis® Risk Solutions includes seven brands that span multiple industries.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20Exact matchBoston, United StatesHQ recorded Nov 5, 20261,001-5,0001,108 contacts →

Exact match

“With proprietary data and omni-channel activation like events, content, programmatic and chat, we cut through the noise to reach entire buyer groups, driving engagement and impact…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21Exact matchGeneva, SwitzerlandHQ recorded Nov 5, 202610001+1,049 contacts →

Exact match

“Merkle (a dentsu company) is a global professional services and consulting company specialising in data-driven experience and business transformation, combining strategy, data…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
22Exact matchReston, VA, United StatesHQ recorded Nov 5, 20261,001-5,000863 contacts →

Exact match

“Neustar, Inc, a TransUnion company, is an information services and technology company and a leader in identity resolution providing the data and technology that enables trusted…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23Exact matchMelville, CA, United StatesHQ recorded Nov 5, 2026n/a781 contacts →

Exact match

“As the leading provider of agile marketing solutions for multichannel marketers on a national and global scale, MBS partners with retailers and others to manage the avalanche of…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24Exact matchNew York, United StatesHQ recorded Nov 5, 2026501-1,000729 contacts →

Exact match

“In an ERA of new and emerging digital mediums, we align our core expertise of today’s ever-changing technology with a clear understanding of traditional marketing methods without…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
25Exact matchVienna, AustriaHQ recorded Nov 5, 2026501-1,000717 contacts →

Exact match

“SAP Engagement Cloud (formerly SAP Emarsys) helps organizations power unique engagement by connecting real-time customer insights with the operational signals that run the…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase

Showing 25 of 4,039 customer data companies worldwide

See the full list, filter by size, metro and specialty, and access 53,981 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Customer data companies worldwide at a glance

As of Nov 5, 2026
33.9%Verified-email coverage
39.5Average contacts per company
11-50Median size (employees)
3.8%Largest-city concentration · London
Nov 5, 2026Page data refreshed

Companies by employee count

1-10
1,726
11-50
1,420
51-200
598
201-500
152
501-1,000
62
1,001-5,000
52
5,001-10,000
11
10001+
9

Email recency is reported on each country list linked below.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
Coverage
Every country. Country and city lists for customer data companies are linked below.
What qualifies
Company records worldwide whose business descriptions match “customer data companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every displayed company carries at least one verified work email. RevenueBase tracks 53,981 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on November 5, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Customer data companies by location

32 lists · largest first

Every Customer data companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “customer data companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many customer data companies are there worldwide?

RevenueBase identified 4,039 company matches for customer data companies worldwide as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Kantar tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most customer data companies?

The United States leads with 1,203 companies, followed by the United Kingdom (332) and India (285). Every customer data companies list by country and city is linked on this page.

Which city has the most customer data companies?

London leads with 154 company records, followed by New York (102) and Sao Paulo (76).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 53,981 professional contacts with verified work emails tracked across these 4,039 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 5, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.